static unsafe void Scan(IScanner src, int y, int w, int* bkg, int dy, int blen, int colorKey, ref int srcX, ref int srcY, ref int maxX, ref int maxY)
{
for (int x = 0; x <= w; x++)
{
var i = x + dy;
if (i > blen)
break;
if (bkg[i] == 0 || Colours.RGBEqual(bkg[i], colorKey))
continue;
Add(src, x, y, bkg[i].Alpha(), ref srcX, ref srcY, ref maxX, ref maxY);
}
}
static unsafe void Scan(IScanner src, int y, int w, int* bkg, IBufferPen pen, int dy, int blen, int colorKey, ref int srcX, ref int srcY, ref int maxX, ref int maxY)
{
for (int x = 0; x <= w; x++)
{
var i = x + dy;
if (i > blen)
break;
if (bkg[i] == Geometry.TransparentColor ||
Colours.RGBEqual(bkg[i], colorKey) ||
bkg[i] == pen.ReadPixel(x, y, true))
continue;
Add(src, x, y, bkg[i].Alpha(), ref srcX, ref srcY, ref maxX, ref maxY);
}
}
